:root {
  --paper: #f4f4f0;
  --paper-deep: #e9e9e3;
  --ink: #151515;
  --muted: #72726d;
  --line: rgba(21, 21, 21, 0.22);
  --soft-line: rgba(21, 21, 21, 0.1);
  --white: #fff;
  --ease-organic: cubic-bezier(0.2, 0.82, 0.28, 1);
}

* { box-sizing: border-box; }

html, body { margin: 0; min-height: 100%; background: var(--paper); color: var(--ink); }

body {
  font-family: "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  overflow: hidden;
}

button, a { font: inherit; color: inherit; }
button { cursor: pointer; }
button:focus-visible, a:focus-visible { outline: 2px solid var(--ink); outline-offset: 4px; }
.stream-screen button:focus-visible { outline-color: var(--white); }

.screen {
  position: fixed;
  inset: 0;
  display: none;
  min-height: 100svh;
  overflow: hidden;
  background: var(--paper);
}

.screen.is-active { display: block; animation: screen-in 700ms var(--ease-organic) both; }
.screen.is-leaving { display: block; animation: screen-out 420ms ease both; pointer-events: none; }

.site-header, .game-header {
  position: relative;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 78px;
  padding: 0 clamp(24px, 4vw, 68px);
  border-bottom: 1px solid var(--line);
}

.wordmark { display: inline-flex; align-items: center; gap: 12px; font-weight: 650; letter-spacing: 0.08em; text-decoration: none; }
.wordmark-mark { display: grid; place-items: center; width: 32px; height: 32px; border: 1px solid currentColor; font-family: serif; font-size: 17px; }
.edition, .eyebrow { margin: 0; font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 12px; letter-spacing: 0.16em; text-transform: uppercase; }
.edition { color: var(--muted); }
.eyebrow { font-weight: 700; }

.intro-screen { background: radial-gradient(circle at 73% 43%, #fff 0, var(--paper) 38%, var(--paper-deep) 100%); }
.intro-screen::before {
  content: "";
  position: absolute;
  inset: 78px 0 0;
  opacity: 0.32;
  background-image: radial-gradient(var(--ink) 0.55px, transparent 0.55px);
  background-size: 12px 12px;
  mask-image: linear-gradient(90deg, transparent, #000 48%, #000);
}

.intro-copy { position: absolute; z-index: 4; left: clamp(28px, 7vw, 112px); top: clamp(132px, 20vh, 210px); }
.intro-copy h1 { margin: 19px 0 24px; font-family: "STSong", "Songti SC", serif; font-size: clamp(42px, 6vw, 92px); font-weight: 400; line-height: 1.12; letter-spacing: -0.055em; }
.intro-note { max-width: 360px; margin: 0; color: var(--muted); font-size: 15px; line-height: 1.8; }

.character-trigger {
  position: absolute;
  z-index: 6;
  right: clamp(3vw, 10vw, 160px);
  bottom: clamp(56px, 8vh, 90px);
  width: min(39vw, 530px);
  border: 0;
  padding: 0;
  background: transparent;
  text-align: center;
}
.character-frame { display: block; position: relative; transform-origin: 50% 100%; animation: breathe 4s ease-in-out infinite; }
.character-frame picture { display:block; }
.character-frame::after { content: ""; position: absolute; left: 18%; right: 13%; bottom: 8%; height: 16px; border-radius: 50%; background: rgba(0,0,0,.12); filter: blur(8px); }
.character-art { display: block; width: 100%; height: auto; filter:none; transition: transform 360ms var(--ease-organic); }
.character-trigger:hover .character-art { transform: translateY(-9px) rotate(-1deg); }
.click-hint { display: inline-flex; align-items: center; gap: 7px; transform: translateY(-12px); padding: 8px 13px; border: 1px solid var(--ink); background: var(--paper); font-size: 13px; letter-spacing: .08em; }
.field-lines { position: absolute; z-index: 2; left: 0; right: 0; bottom: 0; height: 19vh; border-top: 1px solid var(--ink); overflow: hidden; }
.field-lines span { position: absolute; left: -10%; right: -10%; height: 1px; background: var(--line); transform-origin: center; }
.field-lines span:nth-child(1) { top: 21%; transform: rotate(1.6deg); }
.field-lines span:nth-child(2) { top: 38%; transform: rotate(-1deg); }
.field-lines span:nth-child(3) { top: 56%; transform: rotate(.7deg); }
.field-lines span:nth-child(4) { top: 72%; transform: rotate(-.5deg); }
.field-lines span:nth-child(5) { top: 88%; transform: rotate(1deg); }
.intro-index { position: absolute; z-index: 4; left: clamp(28px, 4vw, 68px); bottom: 22px; margin: 0; font: 11px ui-monospace, monospace; letter-spacing: .1em; color: var(--muted); }

.stream-screen { background: #111; color: #f6f6f2; }
.stream-screen::after { content: ""; position: absolute; inset: 0; pointer-events: none; background: radial-gradient(circle at center, transparent 25%, rgba(0,0,0,.68) 100%); }
.inverse-header { border-color: rgba(255,255,255,.25); }
.text-button { border: 0; background: transparent; color: #c9c9c3; font-size: 13px; padding: 8px 0; }
.stream-copy { position: absolute; z-index: 8; left: clamp(24px, 5vw, 78px); top: 118px; }
.stream-copy h2 { margin: 13px 0 0; font-family: "STSong", "Songti SC", serif; font-weight: 400; font-size: clamp(32px, 4vw, 58px); line-height: 1.2; }
.word-ocean { position: absolute; z-index: 3; inset: 78px 0 0; overflow: hidden; transition: opacity 1s ease; }
.word-chip { position: absolute; left: var(--x); bottom: -80px; max-width: min(46vw, 520px); color: rgba(255,255,255,var(--alpha)); font-family: "STSong", "Songti SC", serif; font-size: var(--size); line-height: 1.5; white-space: nowrap; animation: rise var(--duration) linear var(--delay) infinite; will-change: transform, opacity; transition: 1.2s var(--ease-organic); }
.word-chip::before { content: attr(data-index); margin-right: 11px; font: 9px ui-monospace, monospace; opacity: .45; }
.word-ocean.is-mapping .word-chip { letter-spacing:.14em; color:rgba(255,255,255,.28); }
.word-ocean.is-condensing .word-chip { animation-play-state: paused; left: 50%; bottom: 46%; transform: translate(-50%, 50%) scale(.01); opacity: 0; filter: blur(2px); }
.analysis-status { position: absolute; z-index: 10; left: clamp(24px, 5vw, 78px); right: clamp(24px, 5vw, 78px); bottom: 40px; }
.status-row { display: flex; justify-content: space-between; gap: 20px; margin-bottom: 11px; font-size: 13px; letter-spacing: .04em; }
.progress-track { height: 1px; background: rgba(255,255,255,.2); }
.progress-track span { display: block; width: 8%; height: 2px; background: #fff; transition: width 700ms var(--ease-organic); }
.analysis-status p { margin: 12px 0 0; color: #9d9d97; font-size: 12px; }
.morph-form { position:absolute; z-index:6; left:50%; top:50%; width:min(34vw,390px); height:min(52vh,470px); transform:translate(-50%,-46%) scale(.74); opacity:0; transition:1.2s var(--ease-organic); }
.morph-form.is-mapped { transform:translate(-50%,-46%) scale(1); opacity:.72; }
.morph-rect { position:absolute; inset:0; border:1px solid rgba(255,255,255,.72); }
.morph-rect::before,.morph-rect::after { content:""; position:absolute; background:rgba(255,255,255,.23); }
.morph-rect::before { left:33%; top:0; bottom:0; width:1px; box-shadow:calc(min(34vw, 390px) / 3) 0 rgba(255,255,255,.23); }
.morph-rect::after { left:0; right:0; top:50%; height:1px; }
.morph-axis { position:absolute; left:50%; top:-12%; bottom:-12%; width:1px; background:rgba(255,255,255,.55); transform:scaleY(.1); transition:1s var(--ease-organic); }
.morph-branch { position:absolute; left:50%; top:42%; width:44%; height:1px; background:rgba(255,255,255,.5); transform-origin:left; opacity:0; transition:1s var(--ease-organic); }
.morph-form.is-tree { width:1px; height:min(60vh,540px); opacity:.65; transform:translate(-50%,-44%) scale(1); }
.morph-form.is-tree .morph-rect { inset:0; border-color:rgba(255,255,255,.7); }
.morph-form.is-tree .morph-axis { transform:scaleY(1); }
.morph-form.is-tree .morph-branch { opacity:1; }
.morph-form.is-tree .branch-left { transform:rotate(150deg); }
.morph-form.is-tree .branch-right { transform:rotate(30deg); }
.forming-tree { position: absolute; z-index: 7; width: min(54vw, 650px); aspect-ratio: 1; left: 50%; top: 50%; transform: translate(-50%, -45%) scale(.6); opacity: 0; transition: 1.7s var(--ease-organic); }
.forming-tree.is-visible { transform: translate(-50%, -45%) scale(1); opacity: 1; }
.forming-tree img { width: 100%; height: 100%; object-fit: contain; filter: invert(1) grayscale(1) contrast(1.4); }
.scan-line { position: absolute; z-index: 2; left: 12%; right: 12%; top: 10%; height: 1px; background: #fff; box-shadow: 0 0 18px #fff; animation: scan 2.2s ease-in-out infinite alternate; }

.result-screen { background: #f7f7f4; }
.result-screen::before { content:""; position:absolute; inset:78px 0 0 50%; border-left:1px solid var(--line); pointer-events:none; }
.result-grid { display: grid; grid-template-columns: 1fr 1fr; height: calc(100svh - 78px); }
.result-tree-wrap { position: relative; display: grid; place-items: center; overflow: hidden; }
.tree-number { position: absolute; left: 6%; top: 4%; color: transparent; -webkit-text-stroke: 1px var(--soft-line); font: 28vw/.8 ui-monospace, monospace; }
.result-tree { position: relative; z-index: 2; width: min(78%, 650px); max-height: 78vh; object-fit: contain; filter: grayscale(1) contrast(1.2); animation: tree-arrives 1.3s var(--ease-organic) both; }
.root-shadow { position:absolute; z-index:1; bottom:12%; width:50%; height:22px; background:rgba(0,0,0,.08); border-radius:50%; filter:blur(9px); }
.tree-profile { display: flex; flex-direction: column; justify-content: center; padding: clamp(36px, 6vw, 94px); }
.tree-profile h2 { margin: 18px 0 22px; font-family: "STSong", "Songti SC", serif; font-weight: 400; font-size: clamp(45px, 5.3vw, 78px); line-height: 1.05; letter-spacing: -.05em; }
.tree-profile-lead { max-width: 460px; color: #555550; line-height: 1.9; }
.profile-metrics { width: min(100%, 470px); margin: 28px 0 18px; }
.profile-metrics > div { display: grid; grid-template-columns: 84px 1fr; align-items: center; gap: 16px; margin: 12px 0; }
.profile-metrics dt { font-size: 13px; color: var(--muted); }
.profile-metrics dd { position: relative; height: 12px; margin: 0; border-bottom: 1px solid var(--line); }
.profile-metrics dd span { position:absolute; left:0; bottom:-1px; width:var(--value); height:2px; background:var(--ink); }
.profile-metrics dd b { position:absolute; right:0; bottom:3px; font:10px ui-monospace,monospace; }
.profile-tags { display:flex; flex-wrap:wrap; gap:8px; margin-bottom:30px; }
.profile-tags span { padding:6px 10px; border:1px solid var(--line); font-size:12px; }
.primary-button, .secondary-button { display:inline-flex; align-items:center; justify-content:center; min-height:50px; border:1px solid var(--ink); padding:0 18px; font-weight:650; letter-spacing:.04em; text-decoration:none; }
.primary-button { display:inline-flex; width: fit-content; align-items:center; justify-content:space-between; gap:42px; color:var(--paper); background:var(--ink); }
.primary-button:hover { color:var(--ink); background:transparent; }
.secondary-button { background:transparent; color:var(--muted); border-color:var(--line); }
.secondary-button:disabled { cursor:not-allowed; }
.primary-button.is-disabled { cursor:not-allowed; color:#999; background:#e5e5df; border-color:#c8c8c1; }
.text-link-button { min-height:34px; border:0; padding:0 4px; background:transparent; color:var(--muted); font-size:12px; text-decoration:underline; text-underline-offset:4px; }
.oauth-scope-note { padding-top:12px; border-top:1px solid var(--line); font-size:12px; }
.header-account { display:flex; align-items:center; }
.auth-identity { display:flex; align-items:center; gap:9px; min-width:0; }
.auth-identity[hidden] { display:none; }
.auth-identity img { flex:0 0 auto; width:30px; height:30px; border:1px solid var(--ink); border-radius:50%; background:var(--paper-deep); object-fit:cover; filter:grayscale(1); }
.auth-identity span { display:grid; gap:1px; min-width:0; }
.auth-identity small { color:var(--muted); font:8px ui-monospace,monospace; letter-spacing:.08em; }
.auth-identity b { max-width:140px; overflow:hidden; font-size:11px; text-overflow:ellipsis; white-space:nowrap; }
.compact-auth { padding-right:18px; border-right:1px solid var(--line); }
.compact-auth img { width:26px; height:26px; }
.header-auth-button { min-height:32px; border:1px solid var(--ink); padding:0 10px; background:transparent; font-size:11px; white-space:nowrap; }
.header-auth-button:hover { background:var(--ink); color:var(--paper); }

.game-screen { background: #f6f6f2; }
.forest-welcome { position:absolute; z-index:40; inset:0; overflow:hidden; background:rgba(246,246,242,.94); isolation:isolate; }
.forest-welcome[hidden] { display:none; }
.welcome-grid { position:absolute; inset:0; opacity:.2; background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px); background-size:34px 34px; mask-image:linear-gradient(to bottom,transparent,black 24%,black 82%,transparent); }
.welcome-character { position:absolute; z-index:3; left:clamp(18px,5vw,80px); bottom:-5%; width:min(42vw,520px); pointer-events:none; filter:grayscale(1) contrast(1.22); }
.welcome-character picture,.welcome-character img { display:block; width:100%; height:auto; }
.welcome-dialogue { position:absolute; z-index:2; top:17%; right:clamp(24px,5vw,76px); bottom:14%; width:min(62vw,850px); min-height:360px; margin:0; padding:clamp(28px,4vw,58px) clamp(28px,5vw,70px) clamp(24px,3vw,42px) clamp(120px,13vw,190px); display:flex; flex-direction:column; border:1px solid var(--ink); background:#0d0d0d; color:#f7f7f2; box-shadow:10px 10px 0 rgba(0,0,0,.13); }
.welcome-dialogue::before { content:""; position:absolute; inset:11px; border:1px solid rgba(255,255,255,.18); pointer-events:none; }
.welcome-dialogue header,.welcome-dialogue footer { position:relative; z-index:1; display:flex; align-items:flex-start; justify-content:space-between; gap:20px; }
.welcome-kicker { margin:0 0 7px; color:#8f8f8a; font:10px/1.2 ui-monospace,"SFMono-Regular",Consolas,monospace; letter-spacing:.22em; }
.welcome-dialogue h2 { margin:0; font:400 clamp(25px,3vw,38px) "STSong","Songti SC",serif; letter-spacing:.12em; }
.welcome-skip { position:relative; z-index:2; border:0; border-bottom:1px solid #777; padding:3px 0; background:transparent; color:#aaa; font-size:11px; }
.welcome-line { position:relative; z-index:1; max-width:650px; margin:auto 0; font:400 clamp(18px,2.1vw,27px)/1.9 "STSong","Songti SC",serif; letter-spacing:.035em; text-wrap:pretty; transition:opacity 160ms ease,transform 160ms ease; }
.welcome-line.is-changing { opacity:0; transform:translateY(6px); }
.welcome-dialogue footer { align-items:center; margin-top:auto; color:#777; font:10px ui-monospace,"SFMono-Regular",Consolas,monospace; letter-spacing:.1em; }
.welcome-next { min-width:124px; border:1px solid #f7f7f2; padding:11px 15px; background:transparent; color:#f7f7f2; text-align:left; }
.welcome-next:hover,.welcome-next:focus-visible { background:#f7f7f2; color:#0d0d0d; }
.game-header { position:absolute; top:0; left:0; right:0; background:rgba(246,246,242,.82); backdrop-filter:blur(10px); }
.resource-bar { display:flex; align-items:center; gap:26px; font-size:13px; }
.resource-bar span { display:flex; align-items:center; gap:7px; }
.seed-icon { width:12px; height:16px; border:1px solid var(--ink); border-radius:70% 30% 70% 30%; transform:rotate(-24deg); }
.drop-icon { width:11px; height:15px; border:1px solid var(--ink); border-radius:70% 35% 60% 50%; transform:rotate(45deg); }
.circle-button { display:grid; place-items:center; width:36px; height:36px; padding:0; border:1px solid var(--ink); border-radius:50%; background:transparent; }
.circle-button:hover { background:var(--ink); color:var(--paper); }
.forest-stage { position:absolute; inset:0; overflow:hidden; background:linear-gradient(#fafaf7 0 74%, #eeeee8 74%); }
.forest-stage::before { content:""; position:absolute; inset:0; opacity:.25; background-image:radial-gradient(#111 .45px,transparent .45px); background-size:9px 9px; }
.distant-hills { position:absolute; left:-5%; right:-5%; bottom:22%; height:28%; border-top:1px solid #969691; border-radius:50% 50% 0 0/100% 100% 0 0; transform:rotate(-2deg); }
.distant-hills::after { content:""; position:absolute; left:35%; right:-20%; top:-15%; height:100%; border-top:1px solid #b2b2ac; border-radius:50% 50% 0 0/100% 100% 0 0; transform:rotate(3deg); }
.sun { position:absolute; right:9%; top:18%; width:70px; height:70px; border:1px solid var(--ink); border-radius:50%; }
.sun span, .sun::before, .sun::after { content:""; position:absolute; inset:50% auto auto 50%; width:104px; height:1px; background:var(--line); transform:translate(-50%,-50%); }
.sun::before { transform:translate(-50%,-50%) rotate(45deg); }
.sun::after { transform:translate(-50%,-50%) rotate(-45deg); }
.cloud { position:absolute; width:110px; height:26px; border:1px solid #aaa; border-radius:50%; border-bottom:0; opacity:.7; animation:cloud-drift 16s ease-in-out infinite alternate; }
.cloud::before,.cloud::after { content:""; position:absolute; bottom:-1px; border:1px solid #aaa; border-bottom:0; border-radius:50% 50% 0 0; background:#f8f8f5; }
.cloud::before { left:17px; width:39px; height:34px; }.cloud::after { right:17px; width:32px; height:24px; }
.cloud-one { left:19%; top:19%; }.cloud-two { left:57%; top:29%; transform:scale(.7); animation-delay:-8s; }
.tree-identity-card { position:absolute; z-index:5; left:clamp(24px,4vw,64px); top:118px; width:230px; }
.tree-identity-card p { margin:0 0 5px; font:11px ui-monospace,monospace; color:var(--muted); letter-spacing:.1em; }
.tree-identity-card h1 { margin:0 0 16px; font:400 30px "STSong","Songti SC",serif; }
.growth-row { display:flex; justify-content:space-between; font-size:12px; }
.growth-track { height:4px; margin-top:7px; background:var(--soft-line); }.growth-track span { display:block; height:100%; background:var(--ink); transition:width .5s var(--ease-organic); }
.main-tree-area { position:absolute; z-index:4; left:50%; bottom:15%; width:min(48vw,600px); transform:translateX(-50%); text-align:center; }
.game-tree { position:relative; z-index:2; width:100%; max-height:67vh; object-fit:contain; filter:grayscale(1) contrast(1.25); transform-origin:50% 92%; animation:tree-sway 6s ease-in-out infinite; }
.tree-aura { position:absolute; left:11%; right:11%; top:6%; bottom:13%; border:1px dashed rgba(0,0,0,.18); border-radius:50%; animation:aura 14s linear infinite; }
.tree-label { position:absolute; z-index:3; left:50%; bottom:0; transform:translate(-50%,55%); padding:5px 10px; border:1px solid var(--ink); background:var(--paper); font-size:11px; white-space:nowrap; }
.guide-in-game { position:absolute; z-index:6; left:36%; bottom:17%; width:112px; border:0; padding:0; background:transparent; }
.guide-in-game picture { display:block; transform:scaleX(-1); transition:transform 180ms ease; }
.guide-in-game img { display:block; width:100%; height:auto; filter:none; }
.guide-in-game > span { position:absolute; left:50%; bottom:-15px; padding:4px 8px; border:1px solid var(--ink); background:var(--paper); color:var(--ink); font:9px ui-monospace,monospace; white-space:nowrap; opacity:0; transform:translate(-50%,4px); transition:180ms ease; }
.guide-in-game:hover picture,.guide-in-game:focus-visible picture { transform:scaleX(-1) translateY(-5px); }
.guide-in-game:hover > span,.guide-in-game:focus-visible > span { opacity:1; transform:translate(-50%,0); }
.guide-chat { z-index:44; }
.guide-chat .welcome-character { filter:none; }
.chat-dialogue { padding-right:clamp(28px,5vw,70px); }
.chat-messages { position:relative; z-index:1; display:flex; flex-direction:column; gap:12px; min-height:0; margin:28px 0 18px; overflow:auto; scrollbar-width:thin; }
.chat-message { width:fit-content; max-width:min(92%,650px); margin:0; padding:11px 14px; border:1px solid rgba(255,255,255,.22); font:400 clamp(15px,1.5vw,18px)/1.7 "STSong","Songti SC",serif; white-space:pre-wrap; }
.chat-message.is-user { align-self:flex-end; background:#f7f7f2; color:#0d0d0d; }
.chat-message.is-pending { color:#999; }
.chat-form { position:relative; z-index:1; display:grid; grid-template-columns:1fr auto; gap:10px; }
.chat-form textarea { min-height:46px; max-height:120px; resize:vertical; border:1px solid #777; border-radius:0; padding:11px 13px; background:transparent; color:#f7f7f2; font:15px/1.5 inherit; outline:none; }
.chat-form textarea:focus { border-color:#f7f7f2; }
.chat-form textarea::placeholder { color:#777; }
.chat-form .welcome-next { min-width:100px; text-align:center; }
.chat-form :disabled { cursor:wait; opacity:.55; }
.chat-note { position:relative; z-index:1; margin:9px 0 0; color:#777; font:9px ui-monospace,monospace; letter-spacing:.05em; }
.sr-only { position:absolute !important; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0; }
.soil { position:absolute; z-index:3; left:0; right:0; bottom:0; height:18%; border-top:1px solid var(--ink); overflow:hidden; }
.soil::before { content:""; position:absolute; inset:0; opacity:.3; background:repeating-linear-gradient(170deg,transparent 0 13px,rgba(0,0,0,.19) 14px,transparent 15px 27px); }
.soil-line { position:absolute; left:-5%; right:-5%; top:42%; height:1px; background:var(--line); transform:rotate(.4deg); }
.root { position:absolute; top:0; width:110px; height:75px; border-left:1px solid var(--line); border-radius:50%; }
.root-a { left:43%; transform:rotate(21deg); }.root-b { left:51%; transform:rotate(-28deg); }.root-c { left:47%; width:180px; transform:rotate(54deg); }
.planted-trees { position:absolute; z-index:4; inset:0; pointer-events:none; }
.planting-slot { position:absolute; z-index:var(--layer,1); left:var(--x); bottom:calc(15.5% + var(--lift,0px)); width:132px; height:205px; padding:0; border:0; background:transparent; transform:translateX(-50%); pointer-events:none; }
.planting-slot.is-occupied { pointer-events:auto; }
.forest-stage.is-planting .planting-slot:not(.is-occupied) { pointer-events:auto; }
.slot-marker { position:absolute; left:50%; bottom:-5px; display:grid; place-items:center; width:34px; height:24px; border:1px solid transparent; color:transparent; transform:translateX(-50%); font:10px ui-monospace,monospace; transition:180ms ease; }
.forest-stage.is-planting .planting-slot:not(.is-occupied) .slot-marker { border-color:var(--ink); background:var(--paper); color:var(--ink); box-shadow:3px 3px 0 rgba(0,0,0,.12); }
.forest-stage.is-planting .planting-slot:not(.is-occupied):hover .slot-marker { background:var(--ink); color:var(--paper); transform:translateX(-50%) translateY(-5px); }
.ordinary-tree-visual { position:absolute; left:50%; bottom:0; width:130px; transform:translateX(-50%) scale(var(--tree-scale)); transform-origin:50% 100%; transition:transform 650ms var(--ease-organic); animation:ordinary-sprout .7s var(--ease-organic) both; }
.ordinary-tree-visual img { display:block; width:100%; height:190px; object-fit:contain; filter:grayscale(1) contrast(1.16); }
.ordinary-tree-visual small { position:absolute; left:50%; bottom:-23px; padding:3px 7px; border:1px solid var(--ink); background:var(--paper); font:9px ui-monospace,monospace; white-space:nowrap; opacity:0; transform:translate(-50%,4px); transition:180ms ease; }
.planting-slot.is-occupied:hover .ordinary-tree-visual small,.planting-slot.is-occupied:focus-visible .ordinary-tree-visual small { opacity:1; transform:translate(-50%,0); }
.planting-panel { position:absolute; z-index:14; top:96px; right:clamp(18px,3vw,48px); width:min(720px,calc(100vw - 36px)); padding:16px; border:1px solid var(--ink); background:rgba(246,246,242,.96); box-shadow:7px 7px 0 rgba(0,0,0,.14); backdrop-filter:blur(12px); }
.planting-panel[hidden] { display:none; }
.planting-panel > div:first-child { display:flex; align-items:end; justify-content:space-between; gap:20px; margin-bottom:12px; }
.planting-panel h2 { margin:0; font:400 18px "STSong","Songti SC",serif; }
.species-choices { display:grid; grid-template-columns:repeat(3,1fr) auto; gap:8px; }
.species-choices button { min-width:0; min-height:58px; border:1px solid var(--line); background:transparent; }
.species-choices button[data-species] { display:grid; grid-template-columns:42px 1fr; align-items:center; gap:8px; padding:6px 10px; text-align:left; }
.species-choices button[data-species][aria-pressed="true"] { border-color:var(--ink); background:var(--ink); color:var(--paper); }
.species-choices img { width:38px; height:44px; object-fit:contain; }
.species-choices span { display:grid; gap:3px; }.species-choices b { font-size:13px; }.species-choices small { color:var(--muted); font-size:10px; }.species-choices i { font-style:normal; }
.species-choices button[aria-pressed="true"] small { color:#bbb; }
.cancel-planting { padding:0 12px; font-size:12px; }
.action-dock { position:absolute; z-index:12; right:clamp(18px,3vw,48px); bottom:28px; display:grid; grid-template-columns:repeat(4,minmax(92px,1fr)); min-width:min(620px,calc(100vw - 48px)); border:1px solid var(--ink); background:rgba(246,246,242,.92); backdrop-filter:blur(12px); }
.action-dock button { display:grid; grid-template-columns:28px 1fr; grid-template-rows:auto auto; align-items:center; gap:2px 8px; min-height:64px; border:0; border-right:1px solid var(--line); padding:9px 13px; background:transparent; text-align:left; }
.action-dock button:last-child { border-right:0; }.action-dock button:hover { background:var(--ink); color:var(--paper); }.action-dock button > span { grid-row:1/3; font-size:22px; }.action-dock b { font-size:13px; }.action-dock small { font-size:10px; color:var(--muted); }.action-dock button:hover small { color:#aaa; }

.modal-backdrop { position:fixed; z-index:50; inset:0; display:grid; place-items:center; padding:20px; background:rgba(15,15,15,.55); backdrop-filter:blur(8px); }
.modal-backdrop[hidden] { display:none; }
.modal-card { position:relative; width:min(540px,100%); padding:clamp(30px,5vw,58px); border:1px solid var(--ink); background:var(--paper); box-shadow:12px 12px 0 rgba(0,0,0,.22); animation:modal-in 450ms var(--ease-organic) both; }
.modal-card h2,.drawer-head h2 { margin:14px 0 18px; font:400 clamp(34px,5vw,54px)/1.1 "STSong","Songti SC",serif; }.modal-card p:not(.eyebrow) { color:var(--muted); line-height:1.8; }
.modal-close { position:absolute; right:15px; top:12px; border:0; background:transparent; font-size:30px; font-weight:200; }
.modal-actions { display:flex; flex-wrap:wrap; gap:10px; margin-top:28px; }
.compact-card { width:min(470px,100%); }
.shop-drawer { position:fixed; z-index:45; top:0; right:0; bottom:0; width:min(440px,100%); padding:32px; border-left:1px solid var(--ink); background:var(--paper); transform:translateX(102%); transition:transform 550ms var(--ease-organic); box-shadow:-20px 0 50px rgba(0,0,0,.12); pointer-events:none; }
.shop-drawer.is-open { transform:translateX(0); pointer-events:auto; }
.drawer-head { display:flex; justify-content:space-between; align-items:flex-start; border-bottom:1px solid var(--line); }.drawer-head h2 { margin-top:8px; }
.drawer-note { color:var(--muted); font-size:13px; line-height:1.7; }
.shop-list { margin-top:26px; border-top:1px solid var(--ink); }
.shop-list article { display:grid; grid-template-columns:54px 1fr auto; align-items:center; gap:14px; min-height:100px; border-bottom:1px solid var(--line); }
.shop-list h3,.shop-list p { margin:0; }.shop-list h3 { font-size:15px; }.shop-list p { margin-top:5px; color:var(--muted); font-size:12px; }
.shop-list button { border:1px solid var(--ink); background:transparent; padding:8px 10px; font-size:12px; }.shop-list button:hover { background:var(--ink); color:var(--paper); }
.shop-tree-thumb { display:block; width:48px; height:70px; object-fit:contain; filter:grayscale(1) contrast(1.15); }
.shop-sketch { position:relative; display:block; width:48px; height:48px; }.seed-sketch::before { content:""; position:absolute; width:24px; height:32px; left:12px; top:8px; border:1px solid var(--ink); border-radius:70% 30% 70% 30%; transform:rotate(-25deg); }.bag-sketch::before { content:""; position:absolute; left:8px; right:8px; bottom:4px; height:32px; border:1px solid var(--ink); border-radius:50% 50% 20% 20%; }.bag-sketch::after { content:"×"; position:absolute; inset:16px 0 0; text-align:center; font-size:13px; }
.inventory-line { text-align:right; font-size:12px; color:var(--muted); }
.toast-region { position:fixed; z-index:80; left:50%; bottom:118px; transform:translateX(-50%); pointer-events:none; }
.toast { padding:10px 15px; border:1px solid var(--ink); background:var(--paper); box-shadow:5px 5px 0 rgba(0,0,0,.2); font-size:13px; animation:toast 2.5s both; white-space:nowrap; }

@keyframes screen-in { from { opacity:0; transform:scale(1.02); } to { opacity:1; transform:none; } }
@keyframes screen-out { to { opacity:0; transform:scale(.985); } }
@keyframes breathe { 50% { transform:translateY(-6px) rotate(.5deg); } }
@keyframes rise { 0% { transform:translateY(0); opacity:0; } 10% { opacity:1; } 88% { opacity:1; } 100% { transform:translateY(-120vh); opacity:0; } }
@keyframes scan { to { top:87%; } }
@keyframes tree-arrives { from { opacity:0; transform:translateY(70px) scale(.82); } }
@keyframes tree-sway { 50% { transform:rotate(.6deg) scaleX(.995); } }
@keyframes aura { to { transform:rotate(360deg); } }
@keyframes cloud-drift { to { transform:translateX(50px); } }
@keyframes sprout { from { transform:translateY(60px) scale(.15); opacity:0; } 70% { transform:translateY(-6px) scale(1.04); } }
@keyframes ordinary-sprout { from { transform:translateX(-50%) translateY(42px) scale(.12); opacity:0; } 70% { transform:translateX(-50%) translateY(-4px) scale(var(--tree-scale)); } to { transform:translateX(-50%) scale(var(--tree-scale)); opacity:1; } }
@keyframes modal-in { from { opacity:0; transform:translateY(24px) rotate(-.7deg); } }
@keyframes toast { 0% { opacity:0; transform:translateY(12px); } 15%,80% { opacity:1; transform:none; } 100% { opacity:0; transform:translateY(-10px); } }

@media (max-width: 840px) {
  .site-header,.game-header { height:64px; padding:0 20px; }
  .edition { display:none; }
  .header-account .auth-identity b { max-width:96px; }
  .intro-screen::before { top:64px; }
  .intro-copy { top:105px; left:24px; right:24px; }
  .intro-copy h1 { font-size:clamp(39px,11vw,60px); }
  .character-trigger { right:50%; transform:translateX(50%); bottom:8vh; width:min(86vw,470px); }
  .click-hint { transform:translateY(-6px); }
  .stream-copy { top:94px; }
  .stream-copy h2 { font-size:36px; }
  .word-chip { max-width:78vw; }
  .morph-form { width:min(60vw,330px); height:44vh; }
  .result-screen { overflow:auto; }
  .result-screen::before { display:none; }
  .result-grid { display:block; height:auto; min-height:calc(100svh - 64px); padding-bottom:40px; }
  .result-tree-wrap { height:46svh; }
  .result-tree { height:92%; width:auto; }
  .tree-number { font-size:50vw; }
  .tree-profile { padding:25px 24px 48px; border-top:1px solid var(--line); }
  .tree-profile h2 { font-size:48px; }
  .game-header .wordmark span:last-child { display:none; }
  .resource-bar { gap:13px; font-size:12px; }
  .compact-auth { padding-right:10px; }
  .compact-auth b { display:none; }
  .header-auth-button { padding:0 8px; font-size:10px; }
  .tree-identity-card { top:84px; left:20px; width:180px; }
  .main-tree-area { width:min(92vw,520px); bottom:22%; }
  .welcome-character { left:-34px; bottom:auto; top:56px; width:250px; opacity:.95; }
  .welcome-dialogue { top:31%; left:14px; right:14px; bottom:94px; width:auto; min-height:0; padding:30px 24px 24px; }
  .welcome-dialogue header { padding-left:150px; min-height:64px; }
  .welcome-line { margin:24px 0 auto; font-size:17px; line-height:1.8; }
  .guide-in-game { left:43%; bottom:23%; width:70px; }
  .guide-in-game > span { display:none; }
  .guide-chat .welcome-character { top:42px; width:210px; }
  .guide-chat .welcome-dialogue { top:25%; bottom:84px; padding:26px 20px 20px; }
  .guide-chat .welcome-dialogue header { min-height:48px; padding-left:125px; }
  .chat-messages { margin:18px 0 12px; }
  .chat-message { max-width:96%; font-size:15px; }
  .chat-form { grid-template-columns:1fr 76px; }
  .chat-form .welcome-next { min-width:0; padding:9px; }
  .soil { height:24%; }
  .action-dock { left:10px; right:10px; bottom:10px; min-width:0; grid-template-columns:repeat(4,1fr); }
  .action-dock button { display:flex; flex-direction:column; justify-content:center; text-align:center; min-height:70px; padding:6px 3px; border-right:1px solid var(--line); }
  .action-dock button > span { font-size:20px; }.action-dock small { display:none; }
  .planting-slot { bottom:calc(23% + var(--lift,0px)); width:74px; height:120px; }
  .ordinary-tree-visual { width:72px; }.ordinary-tree-visual img { height:110px; }
  .planting-panel { top:76px; left:10px; right:10px; width:auto; padding:12px; }
  .planting-panel > div:first-child { display:block; }.planting-panel h2 { margin-top:5px; }
  .species-choices { grid-template-columns:1fr 1fr; }.cancel-planting { grid-column:1/-1; min-height:34px !important; }
}

@media (max-height: 650px) and (orientation: landscape) {
  .intro-copy { top:90px; left:clamp(28px,5vw,72px); width:48vw; }
  .intro-copy h1 { margin:10px 0 12px; font-size:clamp(32px,5vw,58px); }
  .intro-note { max-width:42vw; font-size:13px; line-height:1.55; }
  .character-trigger { right:4vw; bottom:18px; width:min(42vw,340px); transform:none; }
  .click-hint { transform:translateY(-6px); }
  .tree-profile h2 { font-size:52px; }.profile-metrics { margin:16px 0 12px; }
  .game-tree { max-height:60vh; }.main-tree-area { bottom:17%; }
  .planting-panel { top:86px; }
}

@media (prefers-reduced-motion: reduce) {
  *,*::before,*::after { animation-duration:.01ms !important; animation-iteration-count:1 !important; scroll-behavior:auto !important; transition-duration:.01ms !important; }
}